The hardware library provides an abstraction layer for hardware interfaces across platforms such as:
- linux
- nos-linux
Note that the hardware library does not include cfe.h or osapi.h.
When using with cFS these includes must be in the cpuX_device_cfg.h file.
Note that the currently maximum number of allocated devices is 30.
Note that the currently maximum number of allocated devices is 30.
Note that currently the maximum number of allocated buses is 3, with each bus supporting 10 devices. Due to the use of GPIO pins as chip selects, it is expected that the following order is used when leveraging a device:
spi_select_chip- this grabs the bus specific mutex- Select GPIO pin if necessary
spi_transaction- multiple if necessary
- Unselect GPIO pin if necessary
spi_unselect_chip
Note that the currently maximum number of allocated devices is 30.